Bus-bar bender



June 21 1927. 1,633,248

F. w'. GE ISSENHAlNER ET AL BUS BAR BENDER Filed March 5, 1924 a INVENTOR Patented June 21, 1 927.

- UNITED STATES 1 1,633,248 PATENT "OFFICE.

,FBEDERICK: WPYGEIISSIENHAINEB, OF FREEHOLD, NEW JERSEIYLANDTMA'TVT'HEIW s. GUMNER, OFzBROOKLYN, NEW YORKQASSIGNORS; TO NESTOR manoracroarne ooMrANY, Ino.,'or 1\mw YORK, Y., AfooaroaA'rIo or ew YORK;

BUS-BAR BENDER.

Application filed March 5,1924. Serial No; 69,951.

. Thisinvention relates to devices for bend 'lng metalgand particularly'to devices for g opemngtlierem or a sleeve'fadapted to fit bendingbus'bars or similar structures.

As is wellknown, most-wireless apparatus,

6 utilizes busbars or wire that is rectangular in cross section and the device hereinafter described was developed particularly. for the purpose of providing a simple means for forming eyes or bends of'any 'desiredshape in wires or bus bars of the character described. r 7 i The invention, therefore, has for its salient object to provide simple'and practical means for bending bus bars into'the desired shape. Another object of the invention is to provide a device of the character described that.

' can be economically manufactured andthat will becompact in construction a'nd thus take up aminimum amount of space. Further objects of the invention will appear from-the following specification taken in connection with the drawings, which form a part of this application. and in which,

Fig. 1 is a perspective view of the plate on which the bus bars or wires are bent.

I Fig. 2 is a perspectiveview showing a de" vice used in conjunctionwith the plate for bending the bus bars. j

Fig. 3 is a perspective view of a bus bar having bends of various forms therein.

Fig. 4 is an enlarged top plan View of the 1 plate showing a bus bar having'formed therein an eye. 1 i

Fig. 5 is, a top plan view of the plate shown in Fig. 1 illustrating different forms of bends that can bepla'ced in the wire.

Fig. 6is a top plan view showing the plate and the bending device illustrating the method of using the device, the bending de-' vice being shown in section.

' Fig. 7 is a'sectional elevation taken substantially-on line 77 offFigJfi.

Fig. 8 is a bottom plan view of a bending device, and

Fig. 9 is a bottom plan view of another bending device adapted for use in forming a different size of eye in the wire or bus bar.

The invention briefly described consists of a plate on which a wire or bus bar to be bent is placed and a bending device adapted for use with the plate to engage and bend the wire. The plate has a pin projecting upwardly therefrom and a lug spaced from the pin a distance sufficient to permit the plac of plate elements.

ingof'the wire or: bus bar between the pin and theglug. The bending device hashan over the pin and alug adapted to engage one edge'of the bus bar and swing the bus adapted for use in forming different sizes of eyes in the bus bar and different bendingdevices are used with these two different sets Further details of the invention will appear from the following description. H U

' Referring particularly to Fig. 1, there, is

shown a'plate 10. having perforations 11 -there1n adapted to'receive screws for securing the plate to a supporting member. The

plate 10 has a pin 12. secured thereto and projectlngupwa'rdly therefrom and has a lug 13 formed'thereon andspaced from the pin 12 adistance sufficient to permit the insertion of a bus bar ltbetween the pin and the lug (see Fig. The lug 131s preferably formed by punching upwardly the'metal of the plate and this lug as shown in Fig. 4 has a curved edge 15 adapted togive the desired contour to the bus bar when the'bus bar is bent around to form an eye 163therein.

The bus bar. '14.- is first placed on the plate between the pin 12 andthe lug l3 and if an eye is to be formed therein, the end of the "bus bar on the plate is so placed as to register with the line AB. This length of bus bar will be suflicient to form an eye such as that shown'in Fig. 4. If a 45 degree bend is to be formed in the bus bar. thebending device hereinafter described will be rotated until the bent end of the bus bar coincides with the 45 degree line on the plate. Inv thesame way the end of the bus bar will be rotated to coincide with a 90 degree line if a 90 degree bend is to be placed therein.

The bending device is shown particularly in Fig. 2. This device'has a base 20 provided with a central aperture 21, from which there extends upwardly a sleeve 22. The aperture 21 and sleeve 22 are so dimensioned as to fitover the pin 12. The base 20 also are formed laterally extending handles or ears 25. The base may also have formed therein a notch 26 which may be used to receive the bus bar and place a twist therein,

if desired.

The pin 12 and lug 13 on the plate and the bending device shown in Figs. 2 and 8 can 1 be used to form one size of eye in the bus bar,

' ularly in Fig. 6. placed in the position on the plate shown in the size of the eye being determined by. the diameter of the pin 12. There is also shown on the plate a pin 32 and lug 33'for forming a different size of eye and Fig.9 illustrates at 34; a bending device adapted for use in conjunction with the pin 32 and lug 83. It will be understood that other sizes of pins and bendingdevices may be provided also, if desired. 1

The method of using the device to form an eye in a bus bar or wire is illustrated partic- The bus bar 1a is first full lines with its inner end 40 registering with the line AB. 'Thebending device is then placed on the pin 12 with the lug 23 on 7 the base 20 of the bending device disposed to the left of the bus bar and as shown in Flg. 6, abutting the lug 13 on the plate. The bending device is then rotated in a clockwise direction as far aspossible and thus forms the eye 16 in thebus bar and bends the bus bar to the positionshown at L1 in dotted lines in which the bar is disposed radially with respect to the center of the eye 16. i i

From the foregoing description it will be seen that'a simple, practical and inexpensive device has been provided for forming eyes or bends of any desired shape in metallic e'iements such as wire, bus bars and so forth.

Although one specific embodiment of the invention has been particularly shown and described, it will be understood that the invention is-capable of modification and that changes in the construction and in the arrangement of the various cooperating parts may be made without departing from the spirit or scope of the invention, as expressed in the following claims.

What we claim is:

1. In a bending device, a base plate, a round pin projecting upwardly therefrom, a lug on said plate spaced from said pin a distance substantially equal to the width of the material to be bent and a tool provide with a flat portion having an opening for receiving said pin and having a lug depending therefrom and similarly spaced from said opening and engageable with-the element to be bent. I

ceiving said pin andhaving a round pin projecting upwardly therefrom, a

lug on said plate spaced from said pin a distance substantially equal to thewidth of the material to be bent, a tool having a substantially flat base provided with an, opening for receiving the pin of the plate and having alug' projecting downwardly therefrom and similarly spaced from said-opening for engaging the element to be-bent, said tool having portions extending upwardly from the base and laterally extending handles formed thereon. I 7

l. In a bending device, a base plate, a round pin projectingupwardly therefrom, a lug on said plate spaced from said pin a distance substantially equal to the width o'f the material to be 'bent'and a tool having a flat portion provided with an opening for receiving said pin and having a lug similarly spaced from said opening and engageable with the element to be bent, said plate having a mark thereon to indicate the position of the inner end of the element to be bent when an eye is tobe formed in said element.

5. In. a bending device, a base plate, a round pin projecting upwardly therefrom, a lug on said plate spaced from said pin a distance substantially equal to the width of the material to be bent and a tool having a flat portion provided with an opening for relug similarly spaced from said opening and engageable with the element to be bent, said plate having marks radially disposed about said pin to indicate the positions tobe taken by the element in whichbends are to be made when said element-is bent to predetermined angles.

6. In a bending device, a base plate, a round pin projecting upwardly therefrom, a lug on the plate spaced from said pin, a tool having a flat base, asleeve formed from the metal of said base and a lug projecting from the opposite side of said base and adapted to engage and bend the element to be bent.

In witness whereof, I have hereunto set d my hand this 29th day of February, 1924.

FREDERICK W. GEISSENHAINER.

In witness whereof, I have hereunto set my hand this 29th day of Febrnary, 192 i. 4 7 MATTHEW s. CUMNER. 

